...sure it is easyer with a demo, but don't you like to figure it out yourself?¿?
i try another way:
if you for instance have the following situation (standing in a line with the wraithwing):
_______
|ttttttt
|tttWttt
|ttttttt
|ttttttt
|ttttttt
|tttBttt (the W stands for the wraithwing, B = bethro, t | are trapdoors)
then you can go north to kill the ww, you also can go northwest to bring the ww to go to northeast. when you're in the next steps going also NE, you will follow the WW diagonally. in your case there is a corner of walls in NW, so you only have to trick the wraithwing in this corner.
at all you have to do:
Click here to view the secret text
×kill all wraithwings you can near the arrow...]
Click here to view the secret text
×walk around the "
outside"
of the traps (from the arrow this is SE, 5 times S, SW...
Click here to view the secret text
×...then westwards till you stand in a line with the ww...
Click here to view the secret text
×next step is SW, so the ww will fly to SE.
Click here to view the secret text
×you're going to S till you stand in a row with the ww...
Click here to view the secret text
×...and finally you stepping to SE and follow the ww to NE diagonally...
try it out
zaubberer